Battery anomalies

[Offroader]

Has anybody seen cell voltages go up during flight? I have two batteries that show one LED turned off when testing the health of the battery. Out of curiosity, I analyzed the cell voltages after a flight and found that cell 4 went from 3.878V to 3.936V and created a cell deviation of 0.115V. I did see times where cells increased in voltage, but the deviation was consistent with previous samples. This alarmed me because Phantom Help Log Viewer output displayed it in red.

 

[Fly Dawg]

Has anybody seen cell voltages go up during flight?

Small fluctuations are normal. They can exceed a max deviancy at times. When those are lengthy intervals or remain at those levels, then you may have an issue. Place a link here to your uploaded file on the log viewer and it can be plotted for better visual.

 

[Offroader]

Well, here is the link.

 

[Fly Dawg]

This deviation occurred at 30.2 seconds in to the flight, lasted less than 1 second and never re-appeared. Had this been constant, you may have an issue. In this instance I don't think you have an issue at all. Here are the plots.

 

[Offroader]

@Fly Dawg, how did you create those graphs?

 

[Fly Dawg]

how did you create those graphs?

Using the .csv file in Excel and exporting to a seperate graphing program.